A critical review on mechanical micro-drilling of glass and carbon fibre reinforced polymer (GFRP and CFRP) composites

Geier, Norbert; Patra, Karali; Anand, Ravi Shankar; Ashworth, Sam; Balázs, Barnabás Zoltán; Lukács, Tamás; Magyar, Gergely; Tamás‐Bényei, Péter; Xu, Jinyang; Davim, J. Paulo

doi:10.1016/j.compositesb.2023.110589

Cited by 30 publications

(10 citation statements)

References 174 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For unidirectional laminate, fibers are at 0a˜I ˆ. Incorporate boundary conditions into governing equation (6).…”

Section: Model Formulationmentioning

confidence: 99%

“…It is frequently cited that delamination-related damages account for more than 50% of component rejections. 6 Delamination assessment is also very crucial for the improvement and correction of assembled parts in order to obtain the highest product acceptance ratio. Over the past two decades, numerous researchers have proposed and verified a variety of qualification and quantification techniques for delamination assesment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Critical thrust force prediction in unidirectional CFRP drilling: An analytical modeling approach

Patel,

Chaudhary

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

In recent trends, unidirectional carbon fiber laminates have been extensively used in the aviation sector due to their remarkable material properties. Delamination is a major damage introduced during drilling in composite laminates. One of the prime contributing factors for delamination-induced damages is considered as the thrust force. A mathematical model is proposed using an analytical approach for accurate prediction of the thrust force for the last lamina, which experience the most damage. The linear elastic fracture mechanics (LEFM), the classical bending plate theory (CPT) and the theory of elastic behavior of composite lamina are taken into consideration for the proposed analytical model because numerical prediction greatly depends on material properties and the nature of force as well. In the current research, the mathematical equation is proposed based on assumption of combined loading of drill tip and chisel edges for the elliptical delaminated area. The Mode-I interlaminar fracture toughness of unidirectional CFRP (CTC1-FUD160/CT-E556) is experimented with as per ASTM D5528 for better experimental substantiation of the proposed model. When the outcomes of the proposed model are compared with the experiment results and available literature as well, a plausible relationship between the suggested analytical model and the experimental results is found. The result also reveals that the contribution of the drill tip is more profound than the chisel edges of drill bit in drilling operations.

show abstract

“…For unidirectional laminate, fibers are at 0a˜I ˆ. Incorporate boundary conditions into governing equation (6).…”

Section: Model Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Critical thrust force prediction in unidirectional CFRP drilling: An analytical modeling approach

Patel,

Chaudhary

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…Composite materials allow the problem of maintaining a high level of physical and mechanical characteristics while reducing the structure weight to be solved in industries such as space, aviation, automotive, construction, etc. Trends demonstrate that the development of technology for the production of the composite materials based on a polymer matrix and the growth of their usage in designs [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading

et al. 2023

View full text Add to dashboard Cite

Composite structures during an operation are subjected to various types of external loading (impact, vibration, cyclic, etc.), which may lead to a decrease in mechanical properties. Previously, many experimental investigations of the mechanical behavior of composites under uniaxial cyclic loading were carried out. Acquisition of new data on the reduction of composite materials’ mechanical characteristics under conditions of multiaxial cyclic loading, as well as verification of existing models for calculation of the residual properties, are relevant. Therefore, this work is devoted to the experimental investigation of the mechanical behavior of fiberglass tubes under proportional cyclic loading. Static and fatigue tests were carried out under tension with torsion conditions. Inhomogeneous strain fields were obtained using a non-contact optical video system VIC-3D. The structural damage accumulation processes were analyzed by an AMSY-6 acoustic emission signals recording system. Surface defects were determined using a DinoLite microscope. Residual dynamic elastic modules were calculated during fatigue tests, and fatigue sensitivity curves were built. Data was approximated using various models, and their high descriptive capability was revealed. Damage accumulation stages were determined. The dependence of the models’ parameters on a stress state were observed. It was concluded that multiaxial cyclic loading leads to a significant decrease in mechanical properties, which should be taken into account in composite structure design.

show abstract

“…It is mentioned in [ 11 ] that the macro-sized holes have a diameter larger than 3 mm and the micro-sized holes are characterized by a diameter less than around 1 mm.…”

Section: Introductionmentioning

confidence: 99%

Quality Analysis of Micro-Holes Made by Polymer Jetting Additive Manufacturing

Udroiu

2023

Polymers

View full text Add to dashboard Cite

Material jetting technology is gaining popularity, especially in polymer science, because of their high accuracy for additive manufacturing (AM) products. This paper aims to investigate the quality of micro-holes that are oriented in three basic directions, and manufactured by the material jetting AM process. This paper proposes a novel methodology to evaluate the accuracy of micro-holes features by using a transparent artifact. A test artifact with horizontal and vertical micro-holes in it, with industrial applications, was designed. Micro-holes were placed on planar and curve surfaces. Samples were manufactured by PolyJet technology from a translucent photopolymer resin which allows a facile investigation (by microscopy) of the inner structure of the micro-holes. The features of ten micro-holes printed in matte and glossy finish type, with diameters in coarse and medium options, according to ISO/ASTM 52902, were analyzed. Quality analysis of the micro-holes features was performed by microscopy investigations. The effects of main factors on the deviation of the micro-hole diameter were investigated by using the statistical design of experiments, and four control factors were considered. The best results were obtained for sample printed in matte finishing with the micro-holes oriented along the x-axis and z-axis. The smallest diameter of the micro-holes obtained by PolyJet technology on an EDEN 350 machine was 0.5 mm, but in industrial applications for a facile post-processing, a higher diameter is recommended to be used. A confirmatory experiment on a wing sample, with a number of micro-holes of the same diameter and a large length to diameter ratio of the micro-holes, was performed, and the repeatability of the results was confirmed.

show abstract

A critical review on mechanical micro-drilling of glass and carbon fibre reinforced polymer (GFRP and CFRP) composites

Cited by 30 publications

References 174 publications

Critical thrust force prediction in unidirectional CFRP drilling: An analytical modeling approach

Critical thrust force prediction in unidirectional CFRP drilling: An analytical modeling approach

Mechanical Properties Degradation of Fiberglass Tubes during Biaxial Proportional Cyclic Loading

Quality Analysis of Micro-Holes Made by Polymer Jetting Additive Manufacturing

Contact Info

Product

Resources

About